It sounds like you really just want to know the minimum you should be doing so I'd recommend Body by Science as it only has you doing weights once a week or so with the aim of getting the most "bang for your buck" so to speak. There's no point doing extra unless you really want to!

fully understood, and there are a lot more ways to get generally stronger than without a barbell... I've had the discussion on here before. But I still think it is generally speaking the best and most progressive way to add strength, and would only help complement those activities.

Oh I agree. Wasn't reopening that discussion. I read OP as basically saying "I hate lifting weights....do I gotta?". To which I was sayin ....well rock climbing and such might be enough for you then.